GAS-OIL FRACTION PRODUCTION METHOD Russian patent published in 2017 - IPC C10G7/00 C10G65/14 C10G65/00 

FIELD: oil and gas industry.

SUBSTANCE: gas-oil fraction production method comprises the stages during which: (a) the first hydrocarbon product flow is created, where the bulk of hydrocarbons has a boiling point in the range of 370-540°C, and the second hydrocarbon product flow, where the hydrocarbon bulk has a boiling point below 370°C, (b) at least a portion of the first hydrocarbon product flow is separated into a gaseous flow and a liquid flow in the separation section, (c) at least a portion of the second hydrocarbonaceous product flow is separated into a gaseous flow and a liquid flow in the separation section, (d) at least part of the liquid flow obtained in step (b) and at least a portion of the liquid flow obtained in step (c) are introduced to the fractionation section to obtain a number of hydrocarbon fractions including a gas-oil fraction, wherein at least a portion of the liquid flow obtained in step (b) is introduced into the fractionation section at the level which is below the level at which at least part of the liquid flow obtained in step (c) and (e) is introduced into the fractionation section, and the gas-oil fraction is removed from the fractionating section.

EFFECT: cheaper method due to the energy efficiency and reduced capital expenditures.

12 cl, 1 dwg, 1 ex